The Fertility beween Morus nigra L. from Turkey and Indigenous or Cultivated Mulberry in Korea

터-키산 흑상(Morus nigra L.)화분과 한국 자생뽕 및 재배뽕간의 임성

The fertilities of indigenous and cultivated mulberry species(varieties) which were polli nated with Morus nigra L. brought from Turkey were investigated. The percentage of ripening sorosis was very high in indigenous species, Morus tiliaefolia Makino and cultivated variety, Keomseolppong and it was around 50% in both Daeryukppong and Cheongilppong However, the flowers of Morus bombycis Koidz. (BOM5-8) and Yongcheonppong fell after pollination. Looking at the sizes of seeds, they are also various. Generally, it was extremely small in Morus tiliaefolia, but it was medium in Keomseolppong, Cheongilppong and Daeryukppong. The fertilization percentage was generally low with 32-42% in the varieties, but it was comparatively high in Keomseolppong and Morus tiliaefolia. The seed germination percentages of Daeryukppong and Morus tiliaefolia are 88.0% and 23.6%, respectively, but it was below 2% in Cheongilppong and Keomseolppong. The cross success percentages are 14.2% and 8.0% in Daeryukppong and Morus tiliaefolia, respectively, but it was below 0.3% in Cheongilppong and Keomseolppong.

흑상(터-키산)화분을 이용하여 한국 자생뽕 2종 및 재배뽕 3계통형 4품종과의 교잡시험을 수행하여 다음과 같은 결과를 얻었다. 오디 성숙률은 자생뽕의 돌뽕나무(북산2호), 재배 뽕의 검설뽕은 매우 높고 대륙뽕, 청일뽕은 50% 내외이며 산뽕나무(BOM5-8호)와 용천뽕은 모두 낙화하였다. 종자의 크기는 돌뽕나무는 매우 작고 점설뽕, 청일뽕 및 대륙뽕은 보통크기이다. 임실률은 32-42%로 낮았는데 그중 검설뽕과 돌뽕나무가 비교적 높았으며 종자발아율은 대륙뽕은 88%, 돌뽕나무는 23.6% 이며 청일뽕과 검설뽕은 2%이하로 극히 불량하였다. 교잡성공율은 대륙뽕은 14.2%, 북산2호는 8.0%이며 청일뽕과 검설뽕은 0.3%이하 이였다.